Wex (from the Cornell Legal Information Institute)
Wex is a free legal dictionary and encyclopedia sponsored and hosted by the Legal Information Institute at the Cornell Law School. Wex entries are collaboratively created and edited by legal experts. More information about Wex can be found in the Wex FAQ. Here's a list of all pages. This is a great resource for experts and novices alike. For example, see this definition for amicus curiae, that includes useful examples.
Resources available through Woodruff Library's databases:
Federal and State cases and documents
U.S. Supreme Court cases and documents
Free resources available to the general public:
Federal and State cases and documents
U.S. Supreme Court cases and documents
Federal cases and documents